INSTALLATIONWall Mounting: Backplates on single face models are supplied with knockouts for attachment to wall surfaces and standard 31/2" and 4" electrical boxes. Ceiling/End Mounting: Mounting canopies are provided for attachment to standard 31/2" and 4" electrical boxes in ceiling or end mount applications

EMERGENCY OPERATIONUpon failure of the normal utility power, a solid-state transfer switch automatically activates the DC incandescent emergency lamps providing uninterrupted operation. Emergency illumination will be supplied for a minimum of 120 minutes on emergency models or 90 minutes on combination (-DEH) models. During emergency operation, the exit battery is protected from severe discharge damage by an automatic low voltage disconnect circuit that discontinues unit operation when battery voltage reaches 87.5% of nominal. When normal utility power is restored, the battery is automatically disconnected from the load and a recharging cycle begins that will return the battery to full capacity within 24 hours.

OPTIONAL SELF-DIAGNOSTIC CIRCUITThe optional SX self-diagnostics circuit automatically cycles the emergency lighting unit every 25-30 days. The SX circuit checks for battery charging and over charging, battery capacity and reports any system malfunction. By design the SX does not activate the lighting heads, thus avoiding substantial lamp life reduction.

BATTERYSealed Lead Calcium maintenance free battery

WARRANTYUnit: (excluding lamps) 3-years full coverage against defects in materials and workmanship from date of shipment battery: 3 years full warranty plus an additional 7 years of pro-r